Please post up some photos of your SLH with a fuel injected engine. I have been thinking about retro-fitting a Polaris fuel injected engine into an SL or Pro hull

How did you fit the electric fuel pump from the fuel injected Virage into the SLH fuel tank?

If you really were running the stock Ficht fuel pump, often the pressure regulator falls out, and can be fixed.

Stock Ficht fuel pressure is about 23PSI, give or take, measured in the return fuel line after the injectors. In the Ficht system, the pressure regulator is at the end of the fuel circuit, after the injectors.

The stock pump was modified on the inlet side to accept a barbed fitting. It was crude but got the job done.

As for the security circut it is just running the grounded out Starter solenoid enable wire.

I should also probably point out I did not build this machine, it was purchased after the swap.

Now i've had to order a higher pressure fuel pump as i coulden't seem to find a fuel pump in the 30psi range. I have a universal regulator off a auto but its ment to be used on the return side of a fuel rail. Can it be used inline or can anyone point me in the right direction for something that will work better.

The stock pump was modified on the inlet side to accept a barbed fitting. It was crude but got the job done.

As for the security circuit it is just running the grounded out Starter solenoid enable wire.

I should also probably point out I did not build this machine, it was purchased after the swap.

Now i've had to order a higher pressure fuel pump as i couldn't seem to find a fuel pump in the 30psi range. I have a universal regulator off a auto but its meant to be used on the return side of a fuel rail.

Can it be used inline or can anyone point me in the right direction for something that will work better.

The fuel pressure regulator for Ficht must be in the fuel return line from the injectors back to the fuel tank. The injectors need to be pressurized.

Why didn't you just repair or replace the original Polaris fuel pump, rather than re-engineering it with an external fuel pump?

I would be concerned about possible fuel leakage inside the hull. The entire fuel system must be able to withstand the hull pounding over the water, without developing any leaks or breaking anything. Fuel fumes inside a PWC hull can be very dangerous.